[U-Boot] [PATCH] mtd: nand: arasan_nfc: Correct nand ecc initialization

[Michal Simek <michal.simek@xilinx.com>]

On 25.5.2016 11:50, Siva Durga Prasad Paladugu wrote:
> Correct the nand ecc initialization code
> This fixes the issue of incorrect nand ecc
> init if no device is found in ecc_matrix then
> it endsup ecc init with junk initialization
> instead of the most suited one.
> 
> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
> ---
>  drivers/mtd/nand/arasan_nfc.c |   18 +++++++++---------
>  1 files changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/mtd/nand/arasan_nfc.c b/drivers/mtd/nand/arasan_nfc.c
> index 2d73a05..caa7982 100644
> --- a/drivers/mtd/nand/arasan_nfc.c
> +++ b/drivers/mtd/nand/arasan_nfc.c
> @@ -1058,20 +1058,20 @@ static int arasan_nand_ecc_init(struct mtd_info *mtd)
>  	if (found < 0)
>  		return 1;
>  
> -	regval = ecc_matrix[i].eccaddr |
> -		 (ecc_matrix[i].eccsize << ARASAN_NAND_ECC_SIZE_SHIFT) |
> -		 (ecc_matrix[i].bch << ARASAN_NAND_ECC_BCH_SHIFT);
> +	regval = ecc_matrix[found].eccaddr |
> +		 (ecc_matrix[found].eccsize << ARASAN_NAND_ECC_SIZE_SHIFT) |
> +		 (ecc_matrix[found].bch << ARASAN_NAND_ECC_BCH_SHIFT);
>  	writel(regval, &arasan_nand_base->ecc_reg);
>  
> -	if (ecc_matrix[i].bch) {
> +	if (ecc_matrix[found].bch) {
>  		regval = readl(&arasan_nand_base->memadr_reg2);
>  		regval &= ~ARASAN_NAND_MEM_ADDR2_BCH_MASK;
> -		regval |= (ecc_matrix[i].bchval <<
> +		regval |= (ecc_matrix[found].bchval <<
>  			   ARASAN_NAND_MEM_ADDR2_BCH_SHIFT);
>  		writel(regval, &arasan_nand_base->memadr_reg2);
>  	}
>  
> -	nand_oob.eccbytes = ecc_matrix[i].eccsize;
> +	nand_oob.eccbytes = ecc_matrix[found].eccsize;
>  	eccpos_start = mtd->oobsize - nand_oob.eccbytes;
>  
>  	for (i = 0; i < nand_oob.eccbytes; i++)
> @@ -1080,9 +1080,9 @@ static int arasan_nand_ecc_init(struct mtd_info *mtd)
>  	nand_oob.oobfree[0].offset = 2;
>  	nand_oob.oobfree[0].length = eccpos_start - 2;
>  
> -	nand_chip->ecc.size = ecc_matrix[i].ecc_codeword_size;
> -	nand_chip->ecc.strength = ecc_matrix[i].eccbits;
> -	nand_chip->ecc.bytes = ecc_matrix[i].eccsize;
> +	nand_chip->ecc.size = ecc_matrix[found].ecc_codeword_size;
> +	nand_chip->ecc.strength = ecc_matrix[found].eccbits;
> +	nand_chip->ecc.bytes = ecc_matrix[found].eccsize;
>  	nand_chip->ecc.layout = &nand_oob;
>  
>  	return 0;
> 

Tested-by: Michal Simek <michal.simek@xilinx.com>

Thanks,
Michal